RATIONALE AND OBJECTIVES: Satisfaction of search (SOS) occurs when a lesion is "missed" after detecting another lesion in the same radiograph. The authors investigated the SOS effect in abdominal contrast studies. METHODS: The authors measured detection of 23 plain film abnormalities in 43 patients who had plain film and contrast examinations. Each plain-film and contrast study was examined independently by 10 radiologists in two sessions, with receiver operating characteristic (ROC) curve areas estimated with the computer program RSCORE-J (University of Iowa, Iowa City, IA) for each condition. RESULTS: Observers more often missed plain film abnormalities present on contrast studies but also made fewer false-positive (FP) responses. There was no change in ROC area, but decision criteria grew more conservative. CONCLUSIONS: The reduction of detecting plain-film abnormalities in contrast examinations differs from the SOS effect of other imaging studies. The reduction in true-positive (TP) and false-positive (FP) rates suggests that a different cause may underlie these misses.
RATIONALE AND OBJECTIVES: Satisfaction of search (SOS) occurs when a lesion is "missed" after detecting another lesion in the same radiograph. The authors investigated the SOS effect in abdominal contrast studies. METHODS: The authors measured detection of 23 plain film abnormalities in 43 patients who had plain film and contrast examinations. Each plain-film and contrast study was examined independently by 10 radiologists in two sessions, with receiver operating characteristic (ROC) curve areas estimated with the computer program RSCORE-J (University of Iowa, Iowa City, IA) for each condition. RESULTS: Observers more often missed plain film abnormalities present on contrast studies but also made fewer false-positive (FP) responses. There was no change in ROC area, but decision criteria grew more conservative. CONCLUSIONS: The reduction of detecting plain-film abnormalities in contrast examinations differs from the SOS effect of other imaging studies. The reduction in true-positive (TP) and false-positive (FP) rates suggests that a different cause may underlie these misses.
Authors: K M Schartz; K S Berbaum; M T Madsen; B H Thompson; B F Mullan; R T Caldwell; B Hammett; A N Ellingson; E A Franken Journal: Br J Radiol Date: 2013-01 Impact factor: 3.039
Authors: K M Schartz; K S Berbaum; M T Madsen; B H Thompson; B F Mullan; R T Caldwell; B Hammett; A N Ellingson; E A Franken Journal: Br J Radiol Date: 2012-09-06 Impact factor: 3.039
Authors: Kevin S Berbaum; Elizabeth A Krupinski; Kevin M Schartz; Robert T Caldwell; Mark T Madsen; Seung Hur; Archana T Laroia; Brad H Thompson; Brian F Mullan; Edmund A Franken Journal: Acad Radiol Date: 2015-09-09 Impact factor: 3.173
Authors: Kevin S Berbaum; Kevin M Schartz; Robert T Caldwell; Mark T Madsen; Brad H Thompson; Brian F Mullan; Andrew N Ellingson; Edmund A Franken Journal: Acad Radiol Date: 2012-10-26 Impact factor: 3.173